4-(4-Aminophenyl)-3-methyl-4-oxobutanoic acid(CAS: 42075-29-6)

4-(4-Aminophenyl)-3-methyl-4-oxobutanoic acid, also known as L-Phenylalanine methyl ester oxime, is a chemical compound with the CAS number 42075-29-6. It is a white or off-white solid with a molecular formula of C11H14N2O3. This compound is characterized by its ability to form salts and esters, and it has a pKa of approximately 4.4.

4-(4-Aminophenyl)-3-methyl-4-oxobutanoic acid is primarily used in the pharmaceutical industry as a precursor for the synthesis of various drugs. It is also utilized in the production of amino acid derivatives, in research for biological and medicinal applications, and in some food additives as a flavor enhancer or preservative.

4-(4-Aminophenyl)-3-methyl-4-oxobutanoic acid is generally considered safe under normal handling conditions. However, it is important to follow safety guidelines, including wearing appropriate personal protective equipment, such as gloves and goggles. It should be stored in a cool, dry place and away from direct sunlight and heat sources to prevent degradation.

4-(4-Aminophenyl)-3-methyl-4-oxobutanoic acid should be stored in a cool, dry place to maintain its stability. Store the compound in a tightly sealed container to prevent moisture absorption. It should be kept away from direct sunlight and heat sources. Avoid contact with oxidizing agents or strong acids, and ensure proper ventilation in the storage area.